Ornithologists say the chirping of birds at daybreak is part of their mating ritual. They tell me that increasing daylight, especially in the spring and early summer, triggers the mating instinct in ...

Birds use their calls to communicate, but some species are exceptionally loud, so much that their chirps, squawks, and calls can surprise or even overwhelm us. From colorful tropical parrots to ...

That’s a great observation. Birds make all kinds of sounds and for lots of different reasons. When I got your question, I called up my friend Jessica Tir, a graduate student at Washington State ...

Night owl, early bird — humans have associated different types of birds with different times of day since the dawn of time. And while some birds are more known for getting up with the sun, there are ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CHICAGO — If you’ve ever been up before the ...

Why do birds chirp so loudly in the early morning? I like to have my bedroom windows open, but the noisy birds seen determined to cause a harsh clatter. Ornithologists say the chirping of birds at ...

The sound of a bird chirping is nature’s alarm clock. It somehow creates a sense of peace as you open your eyes to get your day started. But one thing you might never recall is hearing birds at night.